With this recipe doesn't have to do anything, just mix the ingredients

The taste is quite bitter, but I didn't mind it. I drink unsweetened tea all the time and this didn't taste much different, to me. The website that my pin originated from is no longer there, but here is a you tube video of Jillian explaining this process.
https://www.youtube.com/watch?v=D4SbT22Qs-M